/// <summary>
/// 开启线程发送
/// 每次发送时调用
/// </summary>
private void TaskSend()
{
if (!semaphore.WaitOne(100))
{
return;
}
if (!queue.IsEmpty)
{
Task.Factory.StartNew(() =>
{
AsyncUDPSendBuffer buffer = null;
do
{
if (queue.TryDequeue(out buffer))
{
socket.SendTo(buffer.Buffer, buffer.Offset, buffer.Length, SocketFlags.None, buffer.EndPoint);
buffer.FreeDataCache();
buffer.Free();
if (buffer.Token != null)
{
AsyncUdpUserToken token = buffer.Token as AsyncUdpUserToken;
if (null != token)
{
//外部缓存也释放
token.FreeCache();
}
}
}
}while (!queue.IsEmpty);
semaphore.Release();
});
}
}
/// <summary>
/// 接收完成
/// </summary>
/// <param name="sender"></param>
/// <param name="token"></param>
private void SocketEndPoint_OnDataReceived(object sender, AsyncUdpUserToken token)
{
if (OnDataReceived != null)
{
OnDataReceived(this, token);
}
}
/// <summary>
/// 数据按照分包层大小分包发送
/// 没有协议
/// </summary>
/// <param name="data">数据</param>
/// <param name="host">远端IP</param>
/// <param name="port">远端端口</param>
/// <param name="isCache">是否使用分包层缓存分包</param>
/// <param name="offet">数据区偏移</param>
/// <param name="len">数据区长度</param>
public void SendPackage(byte[] data, string host, int port, bool isCache = false, int offet = 0, int len = 0)
{
//使用了分包缓存
int index = 0;
AsyncUdpUserToken token = null;
if (len == 0)
{
len = data.Length;
}
if (token == null)
{
token = new AsyncUdpUserToken();
token.Data = data;
token.Offset = offet;
token.Length = len;
token.Remote = new IPEndPoint(IPAddress.Parse(host), port);
}
do
{
if (isCache)
{
SendPackage(DataPack.PackCacheUDP(token, ref index));
}
else
{
Send(DataPack.PackUDP(token, ref index), host, port);
}
} while (index < len);
token.FreeCache();
}
private bool isClear = false;//是否调用了清理
/// <summary>
/// 发送的根数据
/// </summary>
/// <param name="token"></param>
public SendQueue(AsyncUdpUserToken token)
{
AsyncUdp = token;
packageID = token.DataPackage.packageID;
resetEvent = new AutoResetEvent(false);
Check();//创建时说明数据已经发送了
}
public void Bind()
{
cacheManager.BufferSize = BufferSize;
cacheManager.Capacity = TotalBufSize * MByte;
tokenPool.MaxLeftNum = TokenMaxLeftNum;
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SendBufferSize = 64 * 1024;
socket.ReceiveBufferSize = 64 * 1024;
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 1000);
if (string.IsNullOrEmpty(Host))
{
localEndPoint = new IPEndPoint(IPAddress.Any, Port);
}
else
{
localEndPoint = new IPEndPoint(IPAddress.Parse(Host), Port);
}
socket.Bind(localEndPoint);
receivebuffer = new byte[BufferSize];
receiveSocketArgs = new SocketAsyncEventArgs();
receiveSocketArgs.RemoteEndPoint = localEndPoint;
receiveSocketArgs.Completed += IO_Completed;
receiveSocketArgs.SetBuffer(receivebuffer, 0, receivebuffer.Length);
AsyncUdpUserToken token = new AsyncUdpUserToken();
token.Socket = socket;
token.IPAddress = localEndPoint.Address;
receiveState = new AsyncSocketUDPState();
receiveState.Data = receivebuffer;
receiveState.Remote = localEndPoint;
receiveState.IPAddress = localEndPoint.Address;
receiveState.Socket = socket;
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="data"></param>
/// <param name="host"></param>
/// <param name="port"></param>
public void SendPackage(byte[] data, string host, int port)
{
AsyncUdpUserToken token = new AsyncUdpUserToken();
token.Data = data;
token.Offset = 0;
token.Length = data.Length;
token.Remote = new IPEndPoint(IPAddress.Parse(host), port);
SendPackage(token);
}
/// <summary>
/// 置回实体
/// </summary>
/// <param name="token"></param>
public void Push(AsyncUdpUserToken token)
{
if (removeNum > 0)
{
removeNum--;
return;
}
stack.Push(token);
Free();
}
private void UDPSocket_OnDataReceived(object sender, AsyncUdpUserToken token)
{
if (IsProtolUnPack)
{
token.Offset = token.Offset + UDPDataPackage.HeadLen;
}
if (OnDataReceived != null)
{
OnDataReceived(this, token);
}
}
/// <summary>
/// 按照协议分包组包发送
/// 一定用到分包层缓存
/// </summary>
/// <param name="data"></param>
/// <param name="host"></param>
/// <param name="port"></param>
/// <param name="offet"></param>
/// <param name="len"></param>
public void SendProtol(byte[] data, string host, int port, int offet = 0, int len = 0)
{
AsyncUdpUserToken token = new AsyncUdpUserToken();
token.Data = data;
token.Offset = offet;
token.Length = len;
token.Remote = new IPEndPoint(IPAddress.Parse(host), port);
SendProtol(token);
}
/// <summary>
/// 接收完成
/// </summary>
/// <param name="seq"></param>
/// <returns></returns>
public AsyncUdpUserToken GetAsyncUdpUserToken(int seq)
{
lastTime = DateTime.Now;
if (AsyncUdp.ListPack != null)
{
if (AsyncUdp.ListPack.Count > seq)
{
AsyncUdpUserToken current = AsyncUdp.ListPack[seq];
return(current);
}
}
return(null);
}
private void SocketEndPoint_OnLossData(object sender, object remote, LosPackage[] list)
{
AsyncUdpUserToken token = new AsyncUdpUserToken();
IPEndPoint endPoint = remote as IPEndPoint;
token.Remote = endPoint;
foreach (LosPackage los in list)
{
los.Pack();
token.Data = los.PData;
uDPPack.Send(token, 0);
}
}
/// <summary>
/// 取出实体
/// </summary>
/// <returns></returns>
public AsyncUdpUserToken Pop()
{
AsyncUdpUserToken token = null;
if (!stack.TryPop(out token))
{
token = new AsyncUdpUserToken();
token.TokenID = Interlocked.Increment(ref tokenid);
token.TokenPool = this;
emptyTime = DateTime.Now;
}
removeNum--;
return(token);
}
/// <summary>
/// 数据分包；采用分包层缓存分包
/// 分包就不可能使用外部缓存
///
/// </summary>
/// <param name="token"></param>
public void SendPackage(AsyncUdpUserToken token)
{
//使用了分包缓存
int index = 0;
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
do
{
AsyncUdpUserToken userToken = DataPack.PackCacheUDP(token, ref index);
Send(userToken, 2);
} while (index < token.Length);
token.FreeCache();
}
/// <summary>
/// 缓存分包
/// </summary>
/// <param name="token"></param>
/// <param name="index"></param>
/// <returns></returns>
public static AsyncUdpUserToken PackCacheUDP(AsyncUdpUserToken token, ref int index)
{
if (cacheUDP == null)
{
cacheUDP = new CacheManager();
cacheUDP.BufferSize = UdpPackSize;
cacheUDP.MaxBufferCount = MaxUseBytes / UdpPackSize * 2;
}
if (tokenPool == null)
{
tokenPool = new UserTokenPool();
}
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
//
byte[] buf = null;
AsyncUdpUserToken userToken = tokenPool.Pop();
userToken.Remote = token.Remote;
userToken.IPAddress = token.IPAddress;
userToken.IsFixCache = false;
userToken.Socket = token.Socket;
if (index + UdpPackSize <= token.Length)
{
//分包
if (!cacheUDP.GetBuffer(out buf))
{
buf = new byte[UdpPackSize];//与
}
Array.Copy(token.Data, token.Offset + index, buf, 0, UdpPackSize);
index += UdpPackSize;
userToken.Cache = cacheUDP;
userToken.TokenPool = tokenPool;
}
else
{
int len = token.Length - index;
buf = new byte[len];
Array.Copy(token.Data, token.Offset + index, buf, 0, len);
index += len;
userToken.TokenPool = tokenPool;
}
return(userToken);
}
/// <summary>
/// 发送完成处理
/// </summary>
/// <param name="e"></param>
private void ProcessSent(SocketAsyncEventArgs e)
{
if (e.UserToken == null)
{
//说明是直接发送或者不够缓存时新创建的
e.SetBuffer(null, 0, 0);
e.Completed -= IO_Completed;
}
else
{
//来自外部缓存或者本层缓存
AsyncUdpUserToken token = e.UserToken as AsyncUdpUserToken;
if (null != token)
{
//来自外部数据
if (token.UserInfo == "outcache")
{
token.FreeCache();
e.SetBuffer(null, 0, 0);
e.Completed -= IO_Completed;
}
}
//else
//{
// //回收缓存;如果发送每次在获取，则要释放
// //如果发送时判断分配缓存了，这里就可以不回收
// if (IsFixCache)
// {
// bufferManager.FreeBuffer(e);
// }
// else
// {
// bufferManager.GetBuffer(e);
// }
//}
}
e.UserToken = null;
pool.Push(e);
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="token"></param>
public void SendPackage(AsyncUdpUserToken token)
{
if (uDPPack == null)
{
Bind();
}
//使用了分包缓存
token.ListPack = new List <AsyncUdpUserToken>();
//
uDPPack.SendProtol(token);
//
if (dicSendQueue == null)
{
dicSendQueue = new ConcurrentDictionary <long, SendQueue>();
}
SendQueue sendList = new SendQueue(token);
dicSendQueue[token.DataPackage.packageID] = sendList;
sendList.PushLossReset += SendList_PushLossReset;
}
/// <summary>
/// 接收完成
/// </summary>
/// <param name="seq"></param>
public void Add(int seq)
{
lastTime = DateTime.Now;
if (AsyncUdp.ListPack != null)
{
if (AsyncUdp.ListPack.Count > seq)
{
try
{
//ListPack没有同步
AsyncUdpUserToken current = AsyncUdp.ListPack[seq];
packageID = current.DataPackage.packageID;
current.FreeCache();
AsyncUdp.ListPack[seq] = null;
}
catch (Exception ex)
{
}
}
}
}
/// <summary>
/// 按照协议分包组包发送
/// </summary>
/// <param name="token"></param>
public void SendProtol(AsyncUdpUserToken token)
{
//使用了分包缓存
int index = 0;
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
do
{
AsyncUdpUserToken userToken = DataPack.PackCacheUDPHead(token, ref index);
userToken.Remote = token.Remote;
Send(userToken, 2);
if (token.ListPack != null)
{
token.ListPack.Add(userToken);
}
} while (index < token.Length);
token.FreeCache();
}
/// <summary>
/// 处理接收的数据
/// </summary>
/// <param name="buf"></param>
/// <param name="Offset"></param>
/// <param name="len"></param>
/// <param name="isCache"></param>
private void DoEventRecvice(byte[] buf, EndPoint remote, int Offset = 0, int len = 0, bool isCache = false)
{
AsyncUdpUserToken token = tokenPool.Pop();
token.Data = buf;
token.Offset = Offset;
token.Length = len;
token.IsFixCache = IsFixCache;
token.Remote = remote;
token.Socket = socket;
if (isCache)
{
token.Cache = cacheManager;
}
if (OnDataReceived != null)
{
Task.Factory.StartNew(() =>
{
OnDataReceived(this, token);
});
}
}
private void Pool_OnReviceData(object sender, long id, byte[] data, RecviceState state)
{
//一组接收完成
if (dicSucess.ContainsKey(id))
{
return;
}
dicSucess[id] = DateTime.Now;
RecvicePool pool = null;
dicPool.TryRemove(id, out pool);
if (OnDataReceived != null)
{
AsyncUdpUserToken token = new AsyncUdpUserToken();
token.Data = data;
token.Remote = remote;
token.Length = data.Length;
Task.Factory.StartNew(() =>
{
OnDataReceived(this, token);
});
RecvicePool recvice = sender as RecvicePool;
if (recvice != null)
{
recvice.Clear();
}
recvice.OnLossData -= Pool_OnLossData;
recvice.OnReviceData -= Pool_OnReviceData;
//完成发送一次
LosPackage package = new LosPackage();
package.packageType = 3;
package.packageID = id;
Pool_OnLossData(this, remote, new LosPackage[] { package });
Console.WriteLine("sucess:" + id);
}
}
/// <summary>
/// 添加数据
/// </summary>
/// <param name="token"></param>
public void Add(AsyncUdpUserToken token)
{
IPEndPoint endPoint = token.Remote as IPEndPoint;
if (null != endPoint)
{
string key = endPoint.Address.ToString() + endPoint.Port;
dicRecvice[key] = DateTime.Now;
RecviceData data = null;
UDPDataPackage package = new UDPDataPackage();
package.UnPack(token.Data, token.Offset, token.Length);
if (dicPool.TryGetValue(key, out data))
{
data.Add(package);
}
else
{
lock (lock_obj)
{
//阻塞创建
if (!dicPool.TryGetValue(key, out data))
{
data = new RecviceData();
dicPool[key] = data;
data.remote = endPoint;
data.OnDataReceived += Data_OnDataReceived;
data.OnLossData += Data_OnLossData;
data.Add(package);
}
else
{
data.Add(package);
}
}
}
}
}
/// <summary>
/// 直接创建byte[]分包
/// </summary>
/// <param name="token"></param>
/// <param name="index"></param>
/// <returns></returns>
public static byte[] PackUDP(AsyncUdpUserToken token, ref int index)
{
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
//
byte[] buf = null;
if (index + UdpPackSize <= token.Length)
{
//分包
buf = new byte[UdpPackSize];
Array.Copy(token.Data, token.Offset + index, buf, 0, UdpPackSize);
index += UdpPackSize;
}
else
{
int len = token.Length - index;
buf = new byte[len];
Array.Copy(token.Data, token.Offset + index, buf, 0, len);
index += len;
}
return(buf);
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="token"></param>
/// <param name="isCache"></param>
public void SendPackage(AsyncUdpUserToken token, int isCache = 0)
{
/*
* 说明，通信层的缓存不回收，其余的数据均回收
* 0.socketArgs.UserToken=null,直接设置buffer=null（标记UserToken=null）
* 1.本层缓存，不回收buffer;(不做任何处理，每次有多个）
* 2.外部缓存，回收直接设置buffer=null,同时回收使用缓存（每次只会有一个，直接回收）
*/
if (0 == isCache)
{
Send(token.Data, token.Remote, token.Offset, token.Length);
}
else if (1 == isCache)
{
//使用通信缓存分组发送;
//只有这个分支会用到通信缓存
int index = token.Offset;
do
{
SocketAsyncEventArgs socketArgs = pool.Pop();
socketArgs.RemoteEndPoint = token.Remote;
socketArgs.UserToken = token;
token.Socket = socket;
token.UserInfo = "udpcache";
if (socketArgs.Buffer == null)
{
//没有分配缓存时才分配
if (IsFixCache)
{
bufferManager.SetBuffer(socketArgs);
}
else
{
bufferManager.GetBuffer(socketArgs);
}
socketArgs.Completed += IO_Completed;
}
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
//拷贝数据到本缓存,
if (socketArgs.Count + index >= token.Length)
{
Array.Copy(token.Data, token.Offset + index, socketArgs.Buffer, socketArgs.Offset, socketArgs.Count);
index += socketArgs.Count;
}
else
{
//不够缓存发送了
byte[] tmp = new byte[token.Length - index];
Array.Copy(token.Data, token.Offset + index, tmp, 0, tmp.Length);
index += tmp.Length;
//先释放
if (socketArgs.Buffer != null)
{
//说明来自缓存
if (IsFixCache)
{
bufferManager.FreeBuffer(socketArgs);
}
else
{
bufferManager.FreePoolBuffer(socketArgs);
}
}
else
{
//说明来自创建
socketArgs.SetBuffer(null, 0, 0);
}
socketArgs.SetBuffer(tmp, 0, tmp.Length);
socketArgs.UserToken = null;
}
//
if (socketArgs.RemoteEndPoint != null)
{
if (!socket.SendToAsync(socketArgs))
{
ProcessSent(socketArgs);
}
}
} while (index < token.Length);
token.FreeCache();//用完外部的了；
}
else if (2 == isCache)
{
SocketAsyncEventArgs socketArgs = pool.Pop();
socketArgs.RemoteEndPoint = token.Remote;
token.UserInfo = "outcache";
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
if (socketArgs.Buffer != null)
{
if (IsFixCache)
{
bufferManager.FreeBuffer(socketArgs);
}
else
{
bufferManager.FreePoolBuffer(socketArgs);
}
socketArgs.SetBuffer(null, 0, 0);
}
else
{
socketArgs.Completed += IO_Completed;
}
//持续使用外部缓存发送，发送后要释放
socketArgs.UserToken = token;
socketArgs.SetBuffer(token.Data, token.Offset, token.Length);
if (socketArgs.RemoteEndPoint != null)
{
if (!socket.SendToAsync(socketArgs))
{
ProcessSent(socketArgs);
}
}
}
else
{
Console.WriteLine("isCache参数不正确");
}
}
/// <summary>
/// 接收底层的数据
/// </summary>
/// <param name="sender"></param>
/// <param name="token"></param>
private void UDPSocket_OnDataReceived(object sender, AsyncUdpUserToken token)
{
Console.WriteLine("接收数据个数:" + token.Length);
switch (token.Data[token.Offset])
{
case 0:
{
//数据
socketEndPoint.Add(token);
if (isValidatePoint)
{
isValidatePoint = false;
EndPointValidate();
}
}
break;
case 1:
{
//接收完成序列
Console.WriteLine("接收小包完成返回");
SendQueue sendQueue = null;
LosPackage rsp = new LosPackage(token.Data);
if (dicSendQueue.TryGetValue(rsp.packageID, out sendQueue))
{
sendQueue.Add(rsp.packageSeq);
}
}
break;
case 2:
{
//丢失序列
Console.WriteLine("接收丢失请求");
SendQueue sendQueue = null;
LosPackage rsp = new LosPackage(token.Data);
if (dicSendQueue.TryGetValue(rsp.packageID, out sendQueue))
{
AsyncUdpUserToken resend = sendQueue.GetAsyncUdpUserToken(rsp.packageSeq);
if (resend != null)
{
uDPPack.Send(resend, 0);
}
}
}
break;
case 3:
{
//完成接收
SendQueue sendQueue = null;
LosPackage rsp = new LosPackage(token.Data);
if (dicSendQueue.TryRemove(rsp.packageID, out sendQueue))
{
sendQueue.Clear();
}
Console.WriteLine("接收完成返回:" + rsp.packageID);
}
break;
}
}
/// <summary>
/// 发送数据
/// isCache：
/// 0直接使用数据区发送（没有缓存）
/// 1拷贝通信层缓存发送（分割缓存大小发送）
/// 2外部缓存发送，发送完成释放
/// </summary>
/// <param name="token">数据封</param>
/// <param name="isCache">
/// 0直接使用数据区发送（没有缓存）
/// 1拷贝发送层缓存发送（分割缓存大小发送）
/// 2外部缓存发送，发送完成释放
///
/// </param>
public void Send(AsyncUdpUserToken token, int isCache)
{
uDPSocket.SendPackage(token, isCache);
}
/// <summary>
/// 缓存分包；如果不到缓存长度就创建byte[],通过isUse
/// </summary>
/// <param name="token"></param>
/// <param name="index"></param>
/// <returns></returns>
public static AsyncUdpUserToken PackCacheUDPHead(AsyncUdpUserToken token, ref int index)
{
if (cacheUDP == null)
{
cacheUDP = new CacheManager();
cacheUDP.BufferSize = UdpPackSize;
cacheUDP.MaxBufferCount = MaxUseBytes / UdpPackSize * 2;
}
if (tokenPool == null)
{
tokenPool = new UserTokenPool();
}
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
//
byte[] buf = null;
AsyncUdpUserToken userToken = tokenPool.Pop();
userToken.Remote = token.Remote;
userToken.IPAddress = token.IPAddress;
userToken.IsFixCache = false;
userToken.Socket = token.Socket;
if (token.DataPackage == null)
{
token.DataPackage = new UDPDataPackage();
token.DataPackage.packageID = Interlocked.Increment(ref dataPackageid);
token.DataPackage.packageSeq = -1;
token.DataPackage.packageSum = token.Length;
token.DataPackage.data = token.Data;
token.DataPackage.DataLen = token.Length;
token.DataPackage.Offset = token.Offset;
token.PackageNum = token.Length / UdpPackSize + 1;
token.DataPackage.PackageNum = token.PackageNum;
}
if (index + UdpPackSize <= token.Length)
{
//分包
if (!cacheUDP.GetBuffer(out buf))
{
buf = new byte[UdpPackSize]; //与
}
token.Offset = token.Offset + index; //移动偏移量
token.DataPackage.Pack(buf, 0, UdpPackSize);
userToken.Data = token.DataPackage.data;
userToken.Length = UdpPackSize;
// Array.Copy(token.Data, token.Offset + index, buf, 0, UdpPackSize);
index += UdpPackSize;
userToken.Cache = cacheUDP;
userToken.TokenPool = tokenPool;
}
else
{
int len = token.Length - index;
buf = new byte[len + UDPDataPackage.HeadLen]; //头
token.Offset = token.Offset + index; //移动偏移量
token.DataPackage.Pack(buf, 0, buf.Length); //这样做恰好合适，内部分包不判断
//Array.Copy(token.Data, token.Offset + index, buf, 0, len);
userToken.Data = buf;
userToken.Length = buf.Length;
index += len;
userToken.TokenPool = tokenPool;
}
return(userToken);
}
private void Recieve(IAsyncResult ar)
{
AsyncSocketUDPState so = ar.AsyncState as AsyncSocketUDPState;
int len = -1;
try
{
len = socket.EndReceiveFrom(ar, ref so.Remote);
//
byte[] buf = null;
bool r = false;
int index = 0;
if (IsFixCache)
{
if (cacheManager.SetBuffer(out buf, out index))
{
r = true;
}
}
else
{
if (cacheManager.GetBuffer(out buf))
{
r = true;
}
}
//
if (!r)
{
buf = new byte[len];
}
//
Array.Copy(receiveState.Data, 0, buf, index, len);
if (EnableHeart)
{
//
AsyncUdpUserToken cur = null;
IPEndPoint remote = so.Remote as IPEndPoint;
string id = remote.ToString() + remote.Port;
if (dicToken.TryGetValue(id, out cur))
{
cur.DataTime = DateTime.Now;
}
else
{
cur = new AsyncUdpUserToken();
cur.IPAddress = localEndPoint.Address;
cur.Socket = socket;
cur.Remote = so.Remote;
dicToken[id] = cur;
}
bool rCpm = true;
if (len == HeartBytes.Length)
{
for (int i = 0; i < len; i++)
{
if (buf[i + index] != so.Data[i + so.OffSet])
{
rCpm = false;
break;
}
}
}
if (rCpm)
{
//是心跳包
Recvice();
return;
}
}
//不要进行耗时操作
DoEventRecvice(buf, so.Remote, index, len, r);
}
catch (Exception)
{
//TODO 处理异常
}
finally
{
Recvice();
}
}
/// <summary>
/// 接收完成处理
/// </summary>
/// <param name="e"></param>
private void ProcessReceived(SocketAsyncEventArgs e)
{
if (e.BytesTransferred > 0 && e.SocketError == SocketError.Success)
{
byte[] buf = null;
bool r = false;
int index = 0;
int len = e.BytesTransferred;
if (IsFixCache)
{
if (cacheManager.SetBuffer(out buf, out index))
{
r = true;
}
}
else
{
if (cacheManager.GetBuffer(out buf))
{
r = true;
}
}
//
if (!r)
{
buf = new byte[len];
}
//
Array.Copy(e.Buffer, e.Offset, buf, index, len);
if (EnableHeart)
{
//
AsyncUdpUserToken cur = null;
IPEndPoint remote = e.RemoteEndPoint as IPEndPoint;
string id = remote.ToString() + remote.Port;
if (dicToken.TryGetValue(id, out cur))
{
cur.DataTime = DateTime.Now;
}
else
{
cur = new AsyncUdpUserToken();
cur.IPAddress = localEndPoint.Address;
cur.Socket = socket;
cur.Remote = e.RemoteEndPoint;
dicToken[id] = cur;
}
bool rCpm = true;
if (len == HeartBytes.Length)
{
for (int i = 0; i < len; i++)
{
if (buf[i + index] != e.Buffer[i + e.Offset])
{
rCpm = false;
break;
}
}
}
if (rCpm)
{
//是心跳包
StartReceive();
return;
}
}
//不要进行耗时操作
DoEventRecvice(buf, e.RemoteEndPoint, index, len, r);
}
StartReceive();
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="token"></param>
/// <param name="isCache"></param>
public void SendPackage(AsyncUdpUserToken token, int isCache = 0)
{
/*
* 说明，通信层的缓存不回收，其余的数据均回收
* 0.socketArgs.UserToken=null,直接设置buffer=null（标记UserToken=null）
* 1.本层缓存，不回收buffer;(不做任何处理，每次有多个）
* 2.外部缓存，回收直接设置buffer=null,同时回收使用缓存（每次只会有一个，直接回收）
*/
if (0 == isCache)
{
Send(token.Data, token.Remote, token.Offset, token.Length);
}
else if (1 == isCache)
{
//使用通信缓存分组发送;
//只有这个分支会用到通信缓存
int index = token.Offset;
byte[] sendBuffer = null;
int Offset = 0;
int len = 0;
do
{
token.Socket = socket;
token.UserInfo = "udpcache";
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
//拷贝数据到本缓存
AsyncUDPSendBuffer buffer = uDPSendPool.Pop();
buffer.EndPoint = token.Remote;
if (IsFixCache)
{
cacheManager.SetBuffer(out sendBuffer, out Offset);
}
else
{
cacheManager.GetBuffer(out sendBuffer);
}
if (cacheManager.BufferSize + index >= token.Length)
{
Array.Copy(token.Data, token.Offset + index, sendBuffer, Offset, cacheManager.BufferSize);
index += cacheManager.BufferSize;
len = cacheManager.BufferSize;
//
buffer.Offset = Offset;
buffer.Length = len;
buffer.BufferCache = cacheManager;
buffer.IsFixCache = IsFixCache;
}
else
{
//不够缓存发送了
byte[] tmp = new byte[token.Length - index];
Array.Copy(token.Data, token.Offset + index, tmp, 0, tmp.Length);
index += tmp.Length;
len = tmp.Length;
buffer.Length = len;
buffer.Offset = 0;
buffer.Buffer = tmp;
}
//
//socket.SendTo(sendBuffer, Offset, len,SocketFlags.None,token.Remote);
queue.Enqueue(buffer);
} while (index < token.Length);
token.FreeCache();//用完外部的了；
}
else if (2 == isCache)
{
token.UserInfo = "outcache";
if (token.Length == 0)
{
token.Length = token.Data.Length;
}
AsyncUDPSendBuffer buffer = uDPSendPool.Pop();
buffer.Buffer = token.Data;
buffer.Offset = token.Offset;
buffer.Length = token.Length;
buffer.EndPoint = token.Remote;
buffer.Token = token;//外部缓存发送完成释放
queue.Enqueue(buffer);
//持续使用外部缓存发送，发送后要释放
}
else
{
Console.WriteLine("isCache参数不正确");
}
TaskSend();
}